diff -r 13cb18b91627 -r 0b70040d3daa include/ecrt.h
--- a/include/ecrt.h	Thu Oct 02 07:14:00 2008 +0000
+++ b/include/ecrt.h	Thu Oct 02 10:19:02 2008 +0000
@@ -367,6 +367,8 @@
  * Master methods
  *****************************************************************************/
 
+#ifdef __KERNEL__
+
 /** Sets the locking callbacks.
  *
  * For concurrent master access, the application has to provide a locking
@@ -386,6 +388,8 @@
         void *cb_data /**< Arbitrary user data. */
         );
 
+#endif /* __KERNEL__ */
+
 /** Creates a new process data domain.
  *
  * For process data exchange, at least one process data domain is needed.